Air is too strong or too weak - dependend on the map size.

Air is quite balanced at the moment.

All i'd say is that heavy fighters probably need to have more HP and probably more DPS.

Licho is not superior to precision bombers.
1) It has an area bomb, so, unlike precisions, its very very universal. This bomb also sometimes throws units around, dealing bonus damage.

2) Having lots of HP in one unit as opposed many units with low HP means you dont lose anything unless all HP is lost. This is especially important for air, as the units repair after every bomb run. Ability do a strike with zero losses is very important. Where you would lose 1-2 precisions (and thats 900m + reclaim for the enemy), you can use Licho, which will survive with 1-20% HP. For you, it will only cost a little E and buildpower to repair a licho.

Now, considering maps:
This is the same as with raiders. Mobile units are stronger on larger maps, and fixed wing air has the most mobile units in the entire game.

Ships arent weak to bombers. You just need to micro them. I know it sucks, but thats how it is. All ships have such a shape that if you maneuver them properly, precision bombers will miss alot. And area bombers arent usually an issue because ships have generally high HP and dont tend to cluster too much.

So, i dont really know what are you really trying to say in your post. AA isnt underpowered, a hacksaw is insanely cheap, killing just 1 precision bomber makes it more than return its cost. Flaks, while short-ranged, totally obliterate everytihng, except maybe for licho. Chainsaws are an insane pain which almost guarantees that a bombing run will have losses.

Bombers are extremely reliant on an idea that you should have minimal or zero losses during a bomber run. Once the defender becomes able to pick off at least some of the attacking bombers, using them becomes less and less worth the expense.

Whether it is too strong or too weak depends on whether there is significant AA. Many times I've been criticized as an "AA Spammer", but in fact I generally only built 2 AA turrets: A Cobra and a Chainsaw. I just usually build them fairly early. If I don't see a lot of air, those will be the only two I build, and the fact is they're usually enough to make anyone on the other side who is going air avoid me. In fact, having their Black Dawn rush slam into a Cobra/Chainsaw combo is often enough to make that player drop air completely, reclaim the factory and put up something else.

Most people build no air at all, or only incidentally (dual-role stuff like the Defender). But if I do see a big enemy air force, and really "spam" AA, it's wasted investment on their part. I've seen a 300+ force of combined bombers, fighters, and gunships hit 6 Cobras and 6 Chainsaws, and just melt so fast less than half the bombers even got a shot off, and none of them made it back to reload. But I was the only one who built any non-naval AA, even though it was obvious the enemy was amassing a huge air force.

AA is extremely powerful against air units (with kill ratios of 10 to 1 metal or more), unless none are built, in which case any resources spent on AA were wasted. Since most ZK battles are too crowded and metal-poor for big air forces, most people don't build AA until late in the game, and usually just to counter Krows. In a 1v1 on a medium to large map, air would probably be badly underpowered (because whatever one side spent on air, the other side could neutralize with less than 1/5 the metal into AA). But that's not the way ZK is usually played.

--Dave

hacksaws are too easily baited by sending in some avengers (which they overkill). You can kill a hacksaw with air and lose only 150 metal by sending in 1 avenger and then 2 prec bombers.

Abusemagnet you spend 1400 metal to counter a black dawn that cost 900 metal. That means you completely ignore ground....

PORC can't defend your forwarded base - not even Chainsaws.

And Stardust is generally more effective against gunships -except BD and Brawler-.
I think a 6x2 field of spaced Stardusts can kill a Krow better than Razors / Flaks if supported by some Chainsaws.

If Vamps get homing missles like avenger, I don't know a problem.
Especially Vamps have to fly through a really large area to kill only a few units - and likely fly right into the enemy AA,